cp -a /etc/apt/sources.list /etc/apt/sources.list.bak

sed -i "s@http://ftp.debian.org@https://mirrors.huaweicloud.com@g" /etc/apt/sources.list
sed -i "s@http://security.debian.org@https://mirrors.huaweicloud.com@g" /etc/apt/sources.list

apt update
